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Emitter and drip-irrigation tube

A technology of emitters and delivery pipes, which is applied in direct liquid fertilizer delivery systems, applications, machines/engines, etc., and can solve problems such as the inability to quantitatively discharge irrigation liquid and changes in the performance of emitters

Inactive Publication Date: 2019-03-15
ENPLAS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the emitter described in Patent Document 1, there is a problem that if it is used in a high temperature state, the performance of the emitter changes until it returns to the state before deformation, and it is temporarily impossible to quantitatively discharge water for irrigation. liquid

Method used

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  • Emitter and drip-irrigation tube
  • Emitter and drip-irrigation tube
  • Emitter and drip-irrigation tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0026] [Structure of delivery pipe and transmitter for drip irrigation]

[0027] figure 2 It is a cross-sectional view along the direction of the axis of the drip irrigation pipe 100 of this embodiment. Such as figure 2 As shown, the delivery pipe 100 for drip irrigation has a delivery pipe 110 and a transmitter 120.

[0028] The delivery pipe 110 is a pipe for flowing an irrigation liquid. On the pipe wall of the conveying pipe 110, a plurality of discharge ports 112 for discharging the irrigation liquid are formed in the axial direction of the conveying pipe 110 at predetermined intervals (for example, 200 to 500 mm). The diameter of the opening of the discharge port 112 is not particularly limited as long as it can discharge the irrigation liquid. In this embodiment, the diameter of the opening of the discharge port 112 is 1.5 mm. The transmitter 120 is re...

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Abstract

This emitter has an emitter body, a film, and a cover. A sealed space is formed between the cover and a portion of the film. A flow channel in the emitter includes: a first through-hole that is openedin a first surface and a second surface of the emitter body; and a second through-hole that is disposed downstream of the first through-hole. The film is disposed so as to block first surface-side openings of the first through-hole and the second through-hole. The film becomes distorted toward the side of the sealed space due to deformation caused in the film when the temperature of the film exceeds a preset value and when the pressure of irrigation liquid circulating within the flow channel exceeds a preset value, thereby creating a gap between the emitter body and the film, through which the first through-hole and the second through-hole are enabled to be connected to each other.

Description

Technical field [0001] The invention relates to a transmitter and a drip irrigation pipe provided with the transmitter. Background technique [0002] As one of plant cultivation methods, drip irrigation has been known. The drip irrigation method is a method in which a drip irrigation pipe is arranged on the soil where plants are grown, and irrigation liquid such as water or liquid fertilizer is dripped from the drip irrigation pipe to the soil. One of the advantages of drip irrigation is that it can limit the consumption of irrigation liquid to a minimum. [0003] The delivery pipe for drip irrigation includes a delivery pipe formed with a plurality of through holes for discharging the irrigation liquid, and a plurality of emitters (also referred to as "Dripper") (for example, refer to Patent Document 1). [0004] figure 1 It is a cross-sectional view of the transmitter 1 described in Patent Document 1. The transmitter 1 described in Patent Document 1 includes a transmitter main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/02F04B43/02
CPCF04B43/02A01G25/023Y02A40/22A01C23/02
Inventor 守越大辅
Owner ENPLAS CORP
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